Search a number
-
+
31200101133 = 347221277313
BaseRepresentation
bin11101000011101010…
…111100001100001101
32222112101111100122020
4131003222330030031
51002344211214013
622155542240353
72153111324655
oct350352741415
988471440566
1031200101133
1112260709853
126068a260b9
132c32bc3606
14171d9a3365
15c29184623
hex743abc30d

31200101133 has 8 divisors (see below), whose sum is σ = 42485244288. Its totient is φ = 20357512704.

The previous prime is 31200101129. The next prime is 31200101137. The reversal of 31200101133 is 33110100213.

It is an interprime number because it is at equal distance from previous prime (31200101129) and next prime (31200101137).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31200101133 - 22 = 31200101129 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31200101137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110638516 + ... + 110638797.

It is an arithmetic number, because the mean of its divisors is an integer number (5310655536).

Almost surely, 231200101133 is an apocalyptic number.

It is an amenable number.

31200101133 is a deficient number, since it is larger than the sum of its proper divisors (11285143155).

31200101133 is a wasteful number, since it uses less digits than its factorization.

31200101133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221277363.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 31200101133 its reverse (33110100213), we get a palindrome (64310201346).

The spelling of 31200101133 in words is "thirty-one billion, two hundred million, one hundred one thousand, one hundred thirty-three".

Divisors: 1 3 47 141 221277313 663831939 10400033711 31200101133